Counting matching models…
I wanted to add prints showing the valence shell electron pair repulsion (VSEPR) theory for the most common geometries to my undergraduate general and inorganic chemistry course. My intention was that this would help students understand…
Whenever we learn the shapes of molecules using the VSEPR method, the angles between the bonds in a tetrahedral molecule (e.g. methane, silane, sulfate anion, etc.) cannot be reliably estimated at first glance (for a triangle it can be…
A snap-together molecular model kit for chemistry class, with the real VSEPR bond angles instead of approximating everything with 109.5°. Included atom geometries (central atoms: 22–24 mm) File Geometry Angle Example C_linear_2bonds…
SO2 is a bent molecule (AX2E): a lone pair on sulfur pushes the bond angle to about 119.5 degrees. A labeled ball-and-stick 3D model for classrooms, teachers and chemistry fans. Every atom is a sphere in standard CPK colors with its…
5 labeled models of the fundamental VSEPR molecular geometries with real molecules and ideal bond angles. Every atom is a sphere in standard CPK colors with its element symbol plus proton and neutron counts printed right ON the sphere…
BeCl2 is the textbook linear molecule (AX2) with a 180 degree bond angle. A labeled ball-and-stick 3D model for classrooms, teachers and chemistry fans. Every atom is a sphere in standard CPK colors with its element symbol plus proton and…
BF3 is the textbook trigonal planar molecule (AX3) with three 120 degree bond angles. A labeled ball-and-stick 3D model for classrooms, teachers and chemistry fans. Every atom is a sphere in standard CPK colors with its element symbol…
CH4 is the textbook tetrahedral molecule (AX4) with 109.5 degree bond angles. A labeled ball-and-stick 3D model for classrooms, teachers and chemistry fans. Every atom is a sphere in standard CPK colors with its element symbol plus proton…
SF6 is the textbook octahedral molecule (AX6) with bond angles of 90 and 180 degrees. A labeled ball-and-stick 3D model for classrooms, teachers and chemistry fans. Every atom is a sphere in standard CPK colors with its element symbol…
